Netopia R2121, User Reference Manual

Page: 183 / 280

Security 14-21
FTP sessions. To allow WAN-originated FTP sessions to a LAN-based FTP ser ver with the IP address a.b.c.d
(corresponding to a numbered IP address such as 163.176.8.243), inser t the following input filter ahead of the
current input filter 1:
■
Enabled: Yes
■
For ward: Yes
■
Source IP Address: 0.0.0.0
■
Source IP Address Mask: 0.0.0.0
■
Dest. IP Address: a.b.c.d
■
Dest. IP Address Mask: 255.255.255.255
■
Protocol Type: TCP
■
Source Por t Comparison: No Compare
■
Source Por t ID: 0
■
Dest. Por t Comparison: Equal
■
Dest. Por t ID: 21
Note: A similar filter could be used to permit Telnet or WWW access. Set the Dest. Por t ID to 23 for Telnet or
80 for WWW.
AURP tunnel. To allow an AURP tunnel between a remote AURP router with the IP address a.b.c.d
(corresponding to a numbered IP address such as 163.176.8.243) and a local AURP router (including the
Netopia R2121 itself), inser t the following input filter ahead of the current input filter 1:
■
Enabled: Yes
■
For ward: Yes
■
Source IP Address: a.b.c.d
■
Source IP Address Mask: 255.255.255.255
■
Dest. IP Address: 0.0.0.0
■
Dest. IP Address Mask: 0.0.0.0
■
Protocol Type: UDP
■
Source Por t Comparison: Equal
■
Source Por t ID: 387
■
Dest. Por t Comparison: Equal
■
Dest. Por t ID: 387